public static boolean isOMGBPMN2(Document model){
        try{
            String queryRoot = "/*[namespace-uri()='http://www.omg.org/spec/BPMN/20100524/MODEL' and local-name()='definitions']";
            Node bpmnRootNode =  (Node) XMLUtils.execXPath(model.getDocumentElement(), queryRoot, XPathConstants.NODE);
            if(bpmnRootNode!=null)